文献类型：期刊文献

英文题名：Removal of nutrients and heavy metals from wastewater with mangrove Sonneratia apetala Buch-Ham

作者：Zhang, Jia-En[3] Liu, Jin-Ling[] Ouyang, Ying[1] Liao, Bao-Wen[2] Zhao, Ben-Liang[3]

第一作者：Zhang, Jia-En

通信作者：Ouyang, Y[1]

机构：[1]St Johns River Water Management Dist, Dept Water Resources, Palatka, FL 32178 USA;[2]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China;[3]S China Agr Univ, Coll Agr, Dept Ecol, Guangzhou 510642, Guangdong, Peoples R China

年份：2010

卷号：36

期号：6

起止页码：807-812

外文期刊名：ECOLOGICAL ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000278641500008)】；

基金：The study was supported by the key scientific and technological projects of Guangdong Province (Nos. 2005A30402003, 2006A36702003) and the research fund from the Forestry Bureau of Guangzhou, China.

语种：英文

外文关键词：Heavy metals; Mangrove wetlands; Nutrients; Sonneratia apetala Buch-Ham

摘要：Mangrove wetlands are important in the removal of nutrients. heavy metals, and organic pollutants from wastewater within estuarine systems due to the presence of oxidized and reduced conditions, periodic flooding by incoming and outgoing tides, and high clay and organic matter content. This study investigated the removal efficiency of nutrients and heavy metals from wastewater by the mangrove Sonneratia apetala Buch-Ham in a simulated wetland. Eight different treatments, namely, three concentration levels of wastewaters, with and without planting of the mangrove species, and one control (with salted water) each for both with and without planting of the mangrove species, were employed in this study Results showed that the amounts of total mangrove biomass from different treatments were in the following order. PL-TW (planted with ten times higher-than-normal wastewater concentration)> PL-FW (planted with five times higher-than-normal wastewater concentration)> PL-SW (planted with normal wastewater concentration)> PL-NW (planted with no wastewater), whereas the magnitude of the heavy metal contents in the biomass was in the following order. Cu > Pb > Cd > Zn. Very good linear correlations existed between the biomass and the nutrients or heavy metals. The Sonneratia apetala Buch-Ham species had its own selectivity for uptake of heavy metals regardless of the initial heavy metal contents and was more effective in the removal of nutrients than heavy metals. Our study suggested that mangrove wetlands with Sonneratia apetala Buch-Ham species had great potential for the removal of nutrients and heavy metals in coastal areas (C) 2010 Elsevier B.V. All rights reserved